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EV31A Magnesium vs. AWS BVAu-7

EV31A magnesium belongs to the magnesium alloys classification, while AWS BVAu-7 belongs to the otherwise unclassified metals. There are 13 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is EV31A magnesium and the bottom bar is AWS BVAu-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
130
Poisson's Ratio 0.27
0.38
Shear Modulus, GPa 17
45
Tensile Strength: Ultimate (UTS), MPa 260
200

Thermal Properties

Melting Onset (Solidus), °C 590
1100
Specific Heat Capacity, J/kg-K 1000
240
Thermal Expansion, µm/m-K 27
13

Otherwise Unclassified Properties

Density, g/cm3 1.8
15

Common Calculations

Stiffness to Weight: Axial, points 13
4.7
Stiffness to Weight: Bending, points 65
11
Strength to Weight: Axial, points 40
3.7
Strength to Weight: Bending, points 50
5.1
Thermal Shock Resistance, points 16
8.9